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1/99 SMV 3000 Transmitter User’s Manual 59
6.7 AP/GPConf Configuration - PV2
Engineering Units
The AP/GPConf tab card displays the Low Range Value (LRV), Low
Range Limit (LRL), Upper Range Value (URV) and Upper Range Limit
(URL) for PV2 in the unit of measure selected in the Engineering Units
field.
NOTE: Depending on the SMV transmitter model type, PV2 will measure static pressure
in either absolute or gauge values.
SMV Models —SMA110 and SMA125 PV2 —Absolute Pressure
—STG170 PV2 —Gauge Pressure
PV2 Engineering Units
Select one of the preprogrammed engineering units in Table 13 for display
of the PV2 measurements.
Table 13 Pre-programmed Engineering Units for PV2*
Engineering Unit Meaning
inH2O @ 39F
inH2O @ 68F
mmHg @ 0C
psi
d
kPa
MPa
mbar
Inches of Water at 39.2
°F (4 °C)
Inches of Water at 68
°F (20 °C)
Millimeters of Mercury at 0
°C (32 °F)
Pounds per Square Inch
Kilopascals
Megapascals
Millibar
bar
g/cm
2
Kg/cm
2
inHg @ 32F
mmH2O @ 4C
mH2O @ 4C
ATM
inH2O @ 60F
Bar
Grams per Square Centimeter
Kilograms per Square Centimeter
Inches of Mercury at 32
°F (0 °C)
Millimeters of Water at 4
°C (39.2 °F)
Meters of Water at 4
°C (39.2 °F)
Normal Atmospheres
Inches of Water at 60
°F (15.6 °C)
d
Factory setting.
* Static pressure may be absolute or gauge pressure, depending on the SMV model type.
Atmospheric Offset
For SMV models SMG170, (which uses gauge pressure as PV2 input),
you must measure the absolute static pressure and then enter that value in
the Atmospheric Offset field.
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